Is app_usbd_cdc_acm_write() blocking or non-blocking call

[AparnaAnand]

Hi,

Is the app_usbd_cdc_acm_write() API in nrf SDK15.2.0 a non blocking call?

Thanks in advance.
-Aparna

[Sigurd]

Hi,

The function app_usbd_cdc_acm_write() is a non-blocking asynchronous call. When all data is sent, event APP_USBD_CDC_ACM_USER_EVT_TX_DONE is generated and a new chunk of data can be sent.